Optical Devices Having Partial or Incomplete Optic and Associated Methods

ABSTRACT

An optical device including a partial or incomplete optic configured operatively as an add-on (e.g., supplemental lens/optic) for an (existing) optical element or system, the partial or incomplete optic having an active area configured in relation to the optical element or system such that the partial or incomplete optic controls or changes foci of light incident upon or provided to the active area, but does not control or change foci of light bypassing optically relevant portions of the partial or incomplete optic, and associated methods for enhancing vision.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of U.S. provisional Application No.62/252,744, entitled “Optical Devices Having Partial or Incomplete Opticand Associated Methods” filed on Nov. 9, 2015, the full disclosure ofwhich is incorporated herein by reference.

TECHNICAL FIELD

The present inventions (or invention) relate(s) generally to opticaldevices or elements, such as a lens or optic, having designs that inoperative (e.g., implanted or installed) configurations correct orimprove vision obtainable by another (e.g., existing) optical element orsystem, and associated methods for enhancing vision.

BACKGROUND ART

FIG. 1 is a “problem formation” diagram visually depicting the formation(or etiology) of unwanted visual symptoms, halos and flare, in anexample conventional circular diffractive multifocal optic, such asReSTOR® Multifocal IOLs sold by Alcon. FIG. 8 is a pictorialrepresentation of an eye and an optical element or system (thereof/inthe eye) inclusive of the (aforementioned, with reference to FIG. 1)conventional circular diffractive multifocal optic, depicting lightsweeping horizontally across the conventional circular diffractivemultifocal optic and redirecting (as transient bursts) to the foveacausing flare (contributing to flare/glare). Moreover, IOLs havingsurface modulations defining multiple diffractive zones, such as theReSTOR® IOL, suffer from secondary image blur due to the higher orderdiffractive powers.

Within the context of multifocal optics (such as, for example, LENTIS®Mplus X multifocal IOLs sold by Oculentis BV of Eerbeek, theNetherlands), prior attempts to address such problems and unwantedvisual symptoms include refractive optic IOLs having a fan-shaped nearvision zone that is inferiorly located which allows the patient tominimize “flare” (e.g., from moving headlights at night) by adjustinggaze upwards. Such IOLs (compared to the aforementioned diffractivemultifocal optic) provide a smaller secondary blur image due to no“higher order” diffractive powers, improve resolution of intermediateobjects, and reduce light scatter and perception of visual disturbances.

Many patients benefit and experience higher quality of life from opticaldevices such as, for example, implanted IOLs. As people age, however,vision obtainable by (with the assistance of) an existing optical device(e.g., an IOL previously implanted in the eye) changes. Moreover, themultiple different vision problems associated with aging, whichtypically are not simultaneous in their onset (presbyopia 45-50,cataract 60-65, advanced macular degeneration (AMD) 70-75), are oftenchallenging to address. In some circumstances, by way of example, apreviously implanted lens is difficult to remove.

It would be helpful to be able to provide an optical device in the formof an add-on (e.g., supplemental lens/optic) for an existing opticalelement or system (e.g., in/including an eye).

It would be helpful to be able to provide an add-on (e.g., supplementallens/optic) for an optical element or system (e.g., that includes anoptical device such as an IOL).

It would be helpful to be able to provide an optical device/add-on(e.g., supplemental lens/optic) for an existing optical element orsystem (e.g., in/including an eye) that corrects or improves a specificaspect (or area) of vision obtainable by the existing optical element orsystem (e.g., addresses only a new or subsequently developing/presentingvision problem without effecting other vision that the existing opticalelement or system obtains).

It would be helpful to be able to provide an optical device (e.g.,supplemental lens/optic) that reduces unwanted visual symptoms, halosand flare, and/or perception of visual disturbances.

SUMMARY OF THE INVENTION

Embodiments described herein relate to technologies and methodologiesfor providing an optical device including, or in the form of, a partialor incomplete optic configured operatively as an add-on (e.g.,supplemental lens/optic) for an (existing, as in alreadybuilt/constructed/assembled, or already or previously installed) opticalelement or system. The partial or incomplete optic is provided, forexample, as an add-on lens/optic for another lens (e.g., that waspreviously implanted) in the eye. In example embodiments andimplementations, the partial or incomplete optic is configured toaddress, or is directed primarily or solely to, a vision problem thatdeveloped or presented subsequent to an implantation and/or otherpositioning of an optical element or system previously (and, in someinstances, still) existing in the eye. In example embodiments andimplementations, the partial or incomplete optic is configured toaddress, or is directed primarily or solely to, a second (e.g.,untreated or inadequately treated) vision problem that was alreadyco-existing with a first vision problem that an optical element orsystem was previously provided to address. In example embodiments andimplementations, the partial or incomplete optic and another opticalelement or system are configured to address multiple vision problems.For example, an optical element or system (e.g., a first lens) directedto a first vision problem and a partial or incomplete optic (e.g., apartial optic/lens) directed to a second vision problem can beconfigured/implanted together (e.g., during the course of one surgery ora single invasive procedure), or the partial or incomplete optic can beconfigured/implanted shortly after the optical element or system isconfigured/implanted (or vice versa). The partial or incomplete opticcan be provided, by way of example, as an add-on lens/optic (e.g., inthe form of an IOL and/or partial disc) having or effectively providingan active area (or portion(s), e.g., one or more regions or sectors)that magnifies images by creating a near focal point, e.g., by adding asingle power or a multifocal (sector) optic to an (existing) opticalelement or system.

In an example embodiment, an optical device includes: a partial orincomplete optic configured operatively as an add-on (e.g., supplementallens/optic) for an (existing) optical element or system, the partial orincomplete optic having an active area (or portion(s), e.g., one or moreregions or sectors) configured in relation to the optical element orsystem such that the partial or incomplete optic controls or changesfoci of light incident upon or provided to the active area, but does notcontrol or change foci of light bypassing optically relevant portions ofthe partial or incomplete optic.

In example embodiments and implementations, the active area (e.g., afan-shaped sector) of the partial or incomplete optic is configured(e.g., in relation to the optical element or system) such that a line ofsight (LOS) or a visual axis (VA) of or associated with the (existing)optical element or system is at or near (intersects) a top portion ofthe active area (of the partial or incomplete optic).

In example embodiments and implementations, the active area (of thepartial or incomplete optic) includes or is provided with (one or more)edge or side portions (e.g., including generally radially directedtransitions/zones) configured and/or treated to effect blocking(occlusion) or diffusion of light (i.e., stray light, specifically,transient bursts occurring as light sweeps horizontally across the edgeor side portions of the optical device, that otherwise could redirectinto the fovea contributing to flare/glare). For example, the edge orside portions can include (or be provided with): a light absorbingsurface layer, a surface treatment or finish, nano-structures (e.g.,that have nano-tips or cones), or a combination or combinations of suchlight effecting structures.

In an example embodiment, a method for enhancing vision includes:providing a partial or incomplete optic as an add-on to an existingoptical element or system, the partial or incomplete optic having anactive area (or portion(s), e.g., one or more regions or sectors)configured in relation to the existing optical element or system suchthat the partial or incomplete optic controls or changes foci of lightincident upon or provided to the active area, but does not control orchange foci of light bypassing optically relevant portions of thepartial or incomplete optic.

In example embodiments and implementations, the partial or incompleteoptic is positioned (in relation to the existing optical element orsystem) such that the active area (of the partial or incomplete optic)controls or changes foci of light incident upon or provided to theexisting optical element or system at an optical region (or area)thereof. In example embodiments and implementations, this optical region(or area) of the existing optical element or system is (generally)fan-shaped and/or at least partially (e.g., mostly) below (below, inelevational sense) a line of sight (LOS) or a visual axis (VA) of orassociated with the existing optical element or system.

In example embodiments and implementations, the existing optical elementor system includes a lens (or other optic) implanted in an eye (e.g., ahuman eye) (or other seeing mechanism or device), and the step ofproviding a partial or incomplete optic is performed subsequent to thelens (or other optic) being implanted.

The method for enhancing vision can further include providing the activearea (of the partial or incomplete optic) with (one or more) edge orside portions that block (occlude) or diffuse light (i.e., stray light,specifically, transient bursts occurring as light sweeps horizontallyacross the edge or side portions, that otherwise could redirect into thefovea contributing to flare/glare). For example, process(es)facilitating or utilized in providing edge or side portions that block(occlude) or diffuse light can include: applying a surface treatment orfinish (e.g., a matte finish) at the edge or side portions fromoutside-in without affecting optical areas; applying a light absorbingsurface layer at the edge or side portions; applying a surface(roughness/modification) treatment at the edge or side portions;applying a surface finish (imparting surface roughness within a range ofpeak-valley height values) at the edge or side portions; utilizing alithography or etching technique to apply and/or modify one or moresurface structures at the edge or side portions; providingnano-structures, e.g., nano-tips (cones), at the edge or side portions;or a combination or combinations of such processes.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a “problem formation” diagram visually depicting the formation(or etiology) of unwanted visual symptoms, halos and flare, in anexample conventional circular diffractive multifocal optic;

FIGS. 2A and 2B are perspective and plan views, respectively, of anexample embodiment of a partial or incomplete optic (which, in variousimplementations, provides or is part of an optical device and/or is of alens/optic design that is configurable operatively to serve as orprovide an add-on to an existing optical element or system);

FIG. 3 is a schematic view showing an example of an (existing) opticalelement or system in an eye;

FIG. 4A is a schematic view showing an optical element or system in(/including) an eye, the optical element or system including an opticaldevice or optic (e.g., in the form of an IOL) and a partial orincomplete optic, such as or similar to that of FIGS. 2A and 2B,configured operatively, and located partially above a line of sight(LOS) or a visual axis (VA) of or associated with the optical element orsystem, as an add-on to the optical element or system in accordance withat least one embodiment of a present invention;

FIG. 4B is a schematic view showing an optical element or system in(/including) an eye, the optical element or system including an opticaldevice or optic (e.g., in the form of an IOL) and a partial orincomplete optic, such as or similar to that of FIGS. 2A and 2B,configured operatively, and located below or inferiorly in relation to aline of sight (LOS) or a visual axis (VA) associated with the opticalelement or system, as an add-on to the optical element or system inaccordance with at least one embodiment of a present invention;

FIG. 5 is a plan view showing an optical element or system (e.g., in theform of an IOL) and a partial or incomplete optic, such as or similar tothat of FIGS. 2A, 2B and 4A, configured operatively, and locatedpartially above (e.g., but mostly below, or inferiorly in relation to) aline of sight (LOS) or a visual axis (VA) of or associated with theexisting optical element or system, as an add-on to the optical elementor system in accordance with at least one embodiment of a presentinvention;

FIG. 6 illustrates how the (aforementioned, with reference to FIG. 1)conventional circular diffractive multifocal optic receives andredirects light (from distance) providing two full circle blur disks(far plus near powers) that form the waist of the light beam as shown,which results in lower optical resolution in intermediate vision;

FIG. 7 illustrates how an existing refractive (or other) optic, togetherwith a partial or incomplete optic (e.g., such as or similar to that ofFIGS. 2A and 2B) configured operatively as an add-on that magnifiesimages by creating a near focal point, receives and redirects light(from distance) providing two half circle blur disks (far plus nearpowers) that form a smaller waist of the light beam (compared to thatprovided by the conventional circular diffractive multifocal optic asshown in FIG. 6), which provides improved optical resolution inintermediate vision;

FIG. 8 is a perspective partially cross-sectional pictorialrepresentation of an eye and an optical element or system (thereof/inthe eye) inclusive of the conventional circular diffractive multifocaloptic (aforementioned, with reference to FIG. 1), the illustrationdepicting light sweeping horizontally across the conventional circulardiffractive multifocal optic and redirecting (as transient bursts) tothe fovea causing flare (contributing to flare/glare);

FIG. 9 is a perspective partially cross-sectional pictorialrepresentation of an eye and a partial or incomplete optic, such as orsimilar to that of FIGS. 2A and 2B, configured operatively as an add-onto an optical element or system (e.g., an IOL, previously implanted,with the upper right quadrant removed for better illustration purpose)in the eye, the illustration depicting light sweeping horizontallyacross the partial or incomplete optic and redirecting (as shown)peripheral to the fovea not causing flare;

FIGS. 10A and 10B are perspective and plan views, respectively, of anexample embodiment of an optical device including a partial orincomplete optic, such as or similar to that of FIGS. 2A and 2B, and acircumferential ring (the optical device and its partial or incompleteoptic, in various implementations, being of and embodying a lens/opticdesign that is configurable operatively to serve as or provide an add-onto an existing optical element or system);

FIGS. 11A and 11B are perspective and plan views, respectively, of anexample embodiment of an optical device including a partial orincomplete optic, such as or similar to that of FIGS. 2A and 2B, and acircumferential ring and loop haptics (the optical device and itspartial or incomplete optic, in various implementations, being of andembodying a lens/optic design that is configurable operatively to serveas or provide an add-on to an existing optical element or system);

FIGS. 12A and 12B are perspective and plan views, respectively, of anexample embodiment of an optical device including a partial orincomplete optic, such as or similar to that of FIGS. 2A and 2B, and acircumferential ring and plate haptics (the optical device and itspartial or incomplete optic, in various implementations, being of andembodying a lens/optic design that is configurable operatively to serveas or provide an add-on to an existing optical element or system);

FIGS. 13A and 13B are perspective and plan views, respectively, of anexample embodiment of an optical device including a partial orincomplete optic, such as or similar to that of FIGS. 2A and 2B, and acircumferential ring and haptics configured to be iris-fixated (theoptical device and its partial or incomplete optic, in variousimplementations, being of and embodying a lens/optic design that isconfigurable operatively to serve as or provide an add-on to an existingoptical element or system);

FIGS. 14A and 14B are perspective and plan views, respectively, of anexample embodiment of an optical device including a partial orincomplete optic, such as or similar to that of FIGS. 2A and 2B, and acircumferential ring and haptics configured for anterior chamberpositioning (the optical device and its partial or incomplete optic, invarious implementations, being of and embodying a lens/optic design thatis configurable operatively to serve as or provide an add-on to anexisting optical element or system);

FIGS. 15A and 15B are perspective and plan views, respectively, of anexample embodiment of a partial or incomplete optic, such as or similarto that of FIGS. 2A and 2B, the optic having a generally fan-shapedactive area;

FIG. 16 is a plan view of another example embodiment of a partial orincomplete optic also having a generally fan-shaped active area thoughdiffering (from the optic shown in FIGS. 15A and 15B) in that the activearea of optic includes or is provided with an additional edge portion orsurface, namely, a concave edge surface (or recess) (denoted “RE”).

FIG. 17 is a plan view of another example embodiment of a partial orincomplete optic also having a generally fan-shaped active area thoughdiffering (from the optic shown in FIGS. 15A and 15B) in that the activearea of optic includes or is provided with an additional edge portion orsurface, namely, a convex edge surface (or protrusion) (denoted “PR”).

FIG. 18 is a flow diagram of an example method for enhancing vision;

FIG. 19 is a plan view of an example embodiment of a partial orincomplete optic, such as or similar to that of FIGS. 2A and 2B, theoptic having a generally fan-shaped active area and edge or sideportions;

FIG. 19A is an enlarged partial view of the optic of FIG. 19, includinga pictorial representation of a process of applying a light effectingtreatment, finish or other modification (from outside inward, asrepresented by the arrow denoted “T₁”) to provide the active area withedge or side portions that block or diffuse light;

FIG. 19B is an enlarged partial view of the optic of FIG. 19, includinga pictorial representation of a process or processes of utilizingmultiple light effecting treatments, finishes and/or other modifications(from outside inward, as represented by the arrow, in plural form,denoted “T₁ ⋅ ⋅ ⋅ T_(N)”) to provide the active area with edge or sideportions that block or diffuse light;

FIG. 19C shows, in a series of illustrations, an edge or side portion(e.g., of an active area of a partial or incomplete optic, or of ahaptic or support structure) to which a light effecting treatment,finish or other modification is directionally applied (along surface S,as represented by the arrow repositioning from the periphery of theoptic inward);

FIG. 20 is an illustration of an edge or side portion (e.g., of anactive area of a partial or incomplete optic, or of a haptic or supportstructure) including or provided with nano-structures that block ordiffuse light incident thereupon;

FIG. 21A is a plan view of an example embodiment of an optical deviceincluding a partial or incomplete optic, such as or similar to that ofFIGS. 2A and 2B, and a circumferential ring and loop haptics, such as orsimilar to those of the optical device of FIGS. 11A and 11B (the opticaldevice and its partial or incomplete optic, in various implementations,being of and embodying a lens/optic design that is configurableoperatively to serve as or provide an add-on to an existing opticalelement or system), the optical device being configured and the partialor incomplete optic and the circumferential ring being made of amaterial or materials sufficiently soft (e.g., a soft acrylic material)to permit the optical device to be folded for installing (e.g.,implanting) the optical device in an eye (e.g., a human eye) or otherseeing mechanism or device that operatively interfaces/provides anoperative interface with the haptics (when the optical device isinstalled);

FIG. 21B depicts dimensions of the optical device of FIG. 21A;

FIG. 22A is a plan view of an example embodiment of an optical deviceincluding a partial or incomplete optic, such as or similar to that ofFIGS. 2A and 2B, and a circumferential ring and loop haptics having twocurve-shaped arms (the optical device and its partial or incompleteoptic, in various implementations, being of and embodying a lens/opticdesign that is configurable operatively to serve as or provide an add-onto an existing optical element or system), the loop haptics including,at opposing exterior portions of the circumferential ring,base/interconnect elements (of the two curve-shaped arms, respectively)and periphery support/interface structures, and the optical device beingconfigured such that, the base/interconnect elements and the peripherysupport/interface structures, together, provide structural support atand about the entire periphery of the circumferential ring (of theoptical device).

FIG. 22B depicts dimensions of the optical device of FIG. 22A;

FIG. 23A is a plan view of an example embodiment of an optical deviceincluding a partial or incomplete optic, such as or similar to that ofFIGS. 2A and 2B, and a circumferential ring and loop haptics having twocurve-shaped arms (the optical device and its partial or incompleteoptic, in various implementations, being of and embodying a lens/opticdesign that is configurable operatively to serve as or provide an add-onto an existing optical element or system), the loop haptics including,at opposing exterior portions of the circumferential ring,base/interconnect elements (of the two curve-shaped arms, respectively)and periphery support/interface structures which are made of a materialthat is harder (less flexible) than the material(s) of the partial orincomplete optic and the circumferential ring, and the optical devicebeing configured such that, the base/interconnect elements and theperiphery support/interface structures, together (and symmetrically orotherwise configured in relation to one or more boundaries of thepartial or incomplete optic), provide structural support at peripheryportions of the circumferential ring (of the optical device); and

FIG. 23B depicts dimensions of the optical device of FIG. 23A.

DISCLOSURE OF INVENTION

Example embodiments of the invention(s) described herein involve opticaldevices including, or in the form of, a partial or incomplete opticconfigured operatively as an add-on or supplemental lens/optic (e.g., inthe form of an IOL and/or partial disc) for another optical element orsystem (e.g., a lens previously implanted in an eye). It is contemplatedthat the principles of the present invention(s) are applicable tolens/optic element(s) for and may be appropriately adapted in variousimplementations to other optical devices including but not limited tocontact lenses.

FIGS. 2A and 2B show an example embodiment of a partial or incompleteoptic 200. In various implementations, a partial or incomplete optic(e.g., such as described herein) provides or is part of an opticaldevice and/or is of a lens/optic design that is configurable operativelyto serve as or provide an add-on to an existing optical element orsystem.

FIG. 3 shows an optical element or system 300 that includes an opticaldevice or optic 100 (such as for example an IOL). The optical element orsystem 300 also includes, or can be considered to include, an eye 140with a cornea 160 and retina 180, and as to which the fovea is denoted“F” and the pupil entrance is denoted “PE”. Haptics (not shown in thisfigure) may also be provided. The (existing) optical device or optic 100includes a lens body 110 having an anterior lens surface (or portion)112 and a posterior lens surface (or portion) 113.

Example embodiments and implementations of the technologies andmethodologies described herein involve an optical element or system(e.g., including an IOL and/or other optical device) that includes or isprovided with a partial or incomplete optic (e.g., such as or similar tothe partial or incomplete optic 200 of FIGS. 2A and 2B). FIG. 4A showsan example embodiment of an optical element or system 400 in(/including) an eye. Example embodiments and implementations involve anoptical device that includes (or consists of) a partial or incompleteoptic, such as or similar to the partial or incomplete optic 200 ofFIGS. 2A and 2B. The optical element or system 400 includes opticaldevice or optic 100 (such as for example an IOL) and a partial orincomplete optic 200 configured operatively as an add-on to the opticalelement or system. Referring also to FIGS. 2A, 2B, the partial orincomplete optic 200 includes a lens body 210 having an anterior lenssurface (or portion) 212 and a posterior lens surface (or portion) 213.The anterior lens surface (or portion) 212 can be spherical or,alternatively or in addition, aspheric, and/or multifocal, and theposterior lens surface (or portion) 213 can be planar, spherical or,alternatively or in addition, aspheric, or toric, or vice versa.

Suitable material for a partial or incomplete optic (e.g., in the formof an IOL) includes, but is not limited to, HOYA material A, which is ahydrophobic acrylic material (U.S. Pat. No. 7,714,090) and thediscussion herein (where appropriate) assumes the use of this material.Other suitable materials include, but are not limited to, PMMA and othersilicone or acrylic materials, which are appropriate for an IOL and/orother optics. In other example embodiments and implementations, ahydrophilic material is utilized.

The partial or incomplete optic 200 includes or is provided with edge orside portions, e.g., two symmetrical surfaces (each denoted “SO”) and anadjoining curved surface (denoted “SO′”). As further discussed below(with reference to FIGS. 15A and 15B), in example embodiments, an(optical) active area of the partial or incomplete optic 200 has a(peripheral) boundary which, at least in part, includes or is defined byone or more edge or side portions/surfaces of the lens body 210 (such asfor example the surfaces SO, SO′). In the example embodiment depicted inFIG. 4A, the partial or incomplete optic 200 is located partially above(e.g., but mostly below, or inferiorly in relation to) a line of sight(LOS), and/or a visual axis (VA), of or associated with the opticalelement or system 400. With reference to FIG. 4B, in another exampleembodiment, a partial or incomplete optic 200′ (e.g., such as or similarto the partial or incomplete optic 200) is configured operatively as anadd-on to the optical element or system 400′, and located below orinferiorly in relation to a line of sight (LOS), and/or a visual axis(VA), associated with the optical element or system.

FIG. 5 shows an optical element or system 500 (e.g., in the form of anIOL) and partial or incomplete optic 200 configured operatively as anadd-on to the optical element or system. In example embodiments andimplementations, an active area of the partial or incomplete optic has ashape (e.g., including boundary portions/surfaces of the optic) inrelation to which its active area can be described as having an angularwidth α. For example, as shown in FIG. 5, an active area of the partialor incomplete optic 200 includes or is provided with a symmetrical pairof edge or side surfaces (denoted “SO-3”) in relation to which anangular width (denoted “α₃”) of the partial or incomplete optic isdefined or otherwise established. Partial or incomplete optics can havevarious shapes inclusive of lens body designs with symmetricalportions/surfaces. For example, and referring again to FIG. 5, pairs ofgenerally radially directed boundary portions/surfaces (denoted “SO-1”and “SO-2”, shown in dashed lines) can alternatively be provided.

Partial or incomplete optics can be located (positioned) and configuredin various ways in relation to an optical element or system, e.g., thatincludes (or consists of) optical device or optic 100 (such as forexample an IOL). With reference to FIG. 4A, in this example embodiment,the partial or incomplete optic 200 is located partially above (e.g.,but mostly below, or inferiorly in relation to) a line of sight (LOS),and/or a visual axis (VA), of or associated with the optical element orsystem 400. With reference to FIG. 4B, in this example embodiment, thepartial or incomplete optic 200′ is located below or inferiorly inrelation to a line of sight (LOS), and/or a visual axis (VA), of orassociated with the optical element or system 400′.

FIG. 6 illustrates how a conventional circular diffractive multifocaloptic 600 (such as previously discussed with reference to FIG. 1)receives and redirects light (from distance) providing two full circleblur disks (far plus near powers) that form the waist of the light beamas shown, which results in lower optical resolution in intermediatevision as compared with that provided by a monofocal optic (for example,20/60 Visual Acuity in intermediate vision as compared with 20/20 VisualAcuity for far vision).

FIG. 7 illustrates how an existing (refractive, diffractive, or other)optic 700, together with a partial or incomplete optic 200 configuredoperatively as an add-on that magnifies images by creating a near focalpoint, receives and redirects light (from distance) providing two halfcircle blur disks (far plus near powers) that form a smaller waist ofthe light beam (compared to that provided by the conventional circulardiffractive multifocal optic as shown in FIG. 6), which providesimproved optical resolution in intermediate vision by about a factor of2 (for example, from 20/60 Visual Acuity in FIG. 6 to 20/30 VisualAcuity in FIG. 7 for certain visual tasks such as resolving a linestripe pattern). By way of example, a partial or incomplete optic 200can configured with an existing diffractive optic (e.g., such aspreviously discussed with reference to FIG. 1) to shift the bifocal focifrom the effected bottom optic relative to the top unaffected bifocalfoci, to form 3 foci or 4 foci.

Partial or incomplete optics such as described herein (e.g., such as orsimilar to that of FIGS. 2A and 2B) can be configured operatively asadd-on/supplemental optics to (existing/other) optical elements orsystems including, but not limited to, for example: for a pseudo-phakiceye having a monofocal IOL of 21 D optical power, adding anadd-on/supplement optic of 3.0 D optical power which provides the eye abifocal vision of 21 D distance power and 24 D near power to serve/aidthe presbyopia need of the patient; for an AMD (or low vision) eyehaving a monofocal IOL of 21 D optical power, adding anadd-on/supplement optic of 10.0 D optical power which provides the eye abifocal vision of 21 D distance power and 31 D near power to serve theclose/near activity needs of the patient. Partial or incomplete opticssuch as described herein can be configured operatively asadd-on/supplemental optics (e.g., as shown in FIG. 4A or FIG. 4B) to an(existing/other) optical element or system that includes (or consistsof) a refractive (or other) optic. Partial or incomplete optics such asdescribed herein can be configured operatively as add-on/supplementaloptics (e.g., as shown in FIG. 5 or FIG. 7) to (existing/other) opticalelements or systems that include, or can be considered to include, aneye.

For a partial or incomplete optic 200 that magnifies images by creatinga near focal point, whether configured (operatively as anadd-on/supplemental optic to the optic 700) in a manner such as shown inFIG. 4A, or as shown in FIG. 4B, in either case, such an optic 200receives and redirects light (from distance) providing two half circleblur disks (far plus near powers) that form a smaller waist of the lightbeam (as previously discussed in relation to FIG. 7).

For a partial or incomplete optic 200, such as or similar to that ofFIGS. 2A and 2B, configured operatively as an add-on/supplemental opticto an (existing/other) optical element or system (e.g., an IOL) in amanner such as shown in FIG. 4A, or as shown in FIG. 5, in either case,such an optic 200 receives light sweeping horizontally across thepartial or incomplete optic and redirects the light (as shown in FIG. 9)peripheral to the fovea not causing flare.

Referring again to FIG. 7, for a partial or incomplete optic 200configured operatively as an add-on/supplemental optic to an(existing/other) optical element or system that includes (or consistsof) the optic 700 (e.g., an IOL) (e.g., in a manner such as shown in oneor more of FIGS. 4A, 4B, 5 and 7), the partial or incomplete optic hasan active area (or portion(s), e.g., one or more regions or sectors)configured in relation to the optic 700 such that the partial orincomplete optic controls or changes foci of light incident upon orprovided to the active area, but does not control or change foci oflight (denoted “L” in FIG. 7) bypassing optically relevant portions ofthe partial or incomplete optic.

Example embodiments and implementations involve an optical device havinga partial or incomplete optic (e.g., such as described herein) that alsoincludes or is provided with one or more clip, claw, anchor, haptic orsupport structure.

FIGS. 10A and 10B show an example embodiment of an optical device 1000including a partial or incomplete optic 1020, such as or similar to thepartial or incomplete optic 200 of FIGS. 2A and 2B, and acircumferential ring 1002 (the optical device 1000 and its partial orincomplete optic 1020, in various implementations, being of andembodying a lens/optic design that is configurable operatively to serveas or provide an add-on to an existing optical element or system). Thecircumferential ring 1002 includes an upper ring portion 1004 and alower ring (/optic support) portion 1006 (e.g., shaped/configured asshown). The upper ring portion 1004 includes an inner surface (denoted“SCR_(I)”) and an outer surface (denoted “SCR_(O)”). The partial orincomplete optic 1020 includes or is provided with edge or sideportions, e.g., two symmetrical surfaces (each denoted “SO”) and anadjoining curved surface (denoted “SO′”, and shown in dashed lines). Inat least one example embodiment, an (optical) active area (denoted “AA”)(or an optically relevant portion) of the partial or incomplete optic1020 has a (peripheral) boundary which, at least in part, includes or isdefined by one or more edge or side portions/surfaces of the optic 1020(such as for example the surfaces SO, SO′). The inner surface SCR_(I)(of the upper ring portion 1004) together with the edge or sideportion(s)/surface(s) SO (of the partial or incomplete optic 1020)define an opening 1030 (or an effectively optically irrelevant portion)of the partial or incomplete optic 1020.

FIGS. 11A and 11B show an example embodiment of an optical device 1100including a partial or incomplete optic 1120, such as or similar to thepartial or incomplete optic 200 of FIGS. 2A and 2B, and acircumferential ring 1102 and loop haptics 1150 (the optical device 1100and its partial or incomplete optic 1120, in various implementations,being of and embodying a lens/optic design that is configurableoperatively to serve as or provide an add-on to an existing opticalelement or system). The circumferential ring 1102 includes an upper ringportion 1104 and a lower ring (/optic support) portion 1106 (e.g.,shaped/configured as shown). The loop haptics 1150 include, at opposingexterior portions of the ring 1102, arms 1152 and base/interconnectelements 1160 (e.g., shaped/configured as shown). The upper ring portion1104 includes an inner surface (denoted “SCR_(I)”) and an outer surface(denoted “SCR_(O)”). The partial or incomplete optic 1120 includes or isprovided with edge or side portions, e.g., two symmetrical surfaces(each denoted “SO”) and an adjoining curved surface (denoted “SO′”, andshown in dashed lines). In at least one example embodiment, an (optical)active area (denoted “AA”) (or an optically relevant portion) of thepartial or incomplete optic 1120 has a (peripheral) boundary which, atleast in part, includes or is defined by one or more edge or sideportions/surfaces of the optic 1120 (such as for example the surfacesSO, SO′). The inner surface SCR_(I) (of the upper ring portion 1104)together with the edge or side portion(s)/surface(s) SO (of the partialor incomplete optic 1120) define an opening 1130 (or an effectivelyoptically irrelevant portion) of the partial or incomplete optic 1120.

FIGS. 12A and 12B show an example embodiment of an optical device 1200including a partial or incomplete optic 1220, such as or similar to thepartial or incomplete optic 200 of FIGS. 2A and 2B, and acircumferential ring 1202 and plate haptics 1250 (the optical device1200 and its partial or incomplete optic 1220, in variousimplementations, being of and embodying a lens/optic design that isconfigurable operatively to serve as or provide an add-on to an existingoptical element or system). The circumferential ring 1202 includes anupper ring portion 1204 and a lower ring (/optic support) portion 1206(e.g., shaped/configured as shown). The plate haptics 1250 include, atopposing exterior portions of the ring 1202, plate/arm elements 1252that have or are provided with openings (or apertures) 1260 (e.g.,shaped/configured as shown). The upper ring portion 1204 includes aninner surface (denoted “SCR_(I)”) and an outer surface (denoted“SCR_(O)”). The partial or incomplete optic 1220 includes or is providedwith edge or side portions, e.g., two symmetrical surfaces (each denoted“SO”) and an adjoining curved surface (denoted “SO′”, and shown indashed lines). In at least one example embodiment, an (optical) activearea (denoted “AA”) (or an optically relevant portion) of the partial orincomplete optic 1220 has a (peripheral) boundary which, at least inpart, includes or is defined by one or more edge or sideportions/surfaces of the optic 1220 (such as for example the surfacesSO, SO′). The inner surface SCR_(I) (of the upper ring portion 1204)together with the edge or side portion(s)/surface(s) SO (of the partialor incomplete optic 1220) define an opening 1230 (or an effectivelyoptically irrelevant portion) of the partial or incomplete optic 1220.

FIGS. 13A and 13B show an example embodiment of an optical device 1300including a partial or incomplete optic 1320, such as or similar to thepartial or incomplete optic 200 of FIGS. 2A and 2B, and acircumferential ring 1302 and haptics 1350 configured to be iris-fixated(the optical device 1300 and its partial or incomplete optic 1320, invarious implementations, being of and embodying a lens/optic design thatis configurable operatively to serve as or provide an add-on to anexisting optical element or system). The circumferential ring 1302includes an upper ring portion 1304 and a lower ring (/optic support)portion 1306 (e.g., shaped/configured as shown). The haptics 1350include, at opposing exterior portions of the ring 1302, plate/armelements 1352 that have or are provided with openings (or apertures)1360 (e.g., shaped/configured as shown). The haptics 1350 can include aslit 1370 (e.g., provided as shown) to serve as a claw to pinch onto theiris for fixation. The upper ring portion 1304 includes an inner surface(denoted “SCR_(I)”) and an outer surface (denoted “SCR_(O)”). Thepartial or incomplete optic 1320 includes or is provided with edge orside portions, e.g., two symmetrical surfaces (each denoted “SO”) and anadjoining curved surface (denoted “SO′”, and shown in dashed lines). Inat least one example embodiment, an (optical) active area (denoted “AA”)(or an optically relevant portion) of the partial or incomplete optic1320 has a (peripheral) boundary which, at least in part, includes or isdefined by one or more edge or side portions/surfaces of the optic 1320(such as for example the surfaces SO, SO′). The inner surface SCR_(I)(of the upper ring portion 1304) together with the edge or sideportion(s)/surface(s) SO (of the partial or incomplete optic 1320)define an opening 1330 (or an effectively optically irrelevant portion)of the partial or incomplete optic 1320. FIGS. 14A and 14B show anexample embodiment of an optical device 1400 including a partial orincomplete optic 1420, such as or similar to the partial or incompleteoptic 200 of FIGS. 2A and 2B, and a circumferential ring 1402 andhaptics 1450 configured for anterior chamber positioning (the opticaldevice 1400 and its partial or incomplete optic 1420, in variousimplementations, being of and embodying a lens/optic design that isconfigurable operatively to serve as or provide an add-on to an existingoptical element or system). The circumferential ring 1402 includes anupper ring portion 1404 and a lower ring (/optic support) portion 1406(e.g., shaped/configured as shown). The haptics 1450 include, atopposing exterior portions of the ring 1402, arms 1452 andbase/interconnect elements 1460 (e.g., shaped/configured as shown). Theupper ring portion 1404 includes an inner surface (denoted “SCR_(I)”)and an outer surface (denoted “SCR_(O)”). The partial or incompleteoptic 1420 includes or is provided with edge or side portions, e.g., twosymmetrical surfaces (each denoted “SO”) and an adjoining curved surface(denoted “SO′”, and shown in dashed lines). In at least one exampleembodiment, an (optical) active area (denoted “AA”) (or an opticallyrelevant portion) of the partial or incomplete optic 1420 has a(peripheral) boundary which, at least in part, includes or is defined byone or more edge or side portions/surfaces of the optic 1420 (such asfor example the surfaces SO, SO′). The inner surface SCR_(I) (of theupper ring portion 1404) together with the edge or sideportion(s)/surface(s) SO (of the partial or incomplete optic 1420)define an opening 1430 (or an effectively optically irrelevant portion)of the partial or incomplete optic 1420.

Thus, in example embodiments and implementations, an optical deviceincludes: a partial or incomplete optic configured operatively as anadd-on (e.g., supplemental lens/optic) for an (existing, as in alreadybuilt/constructed/assembled, or already or previously installed) opticalelement or system, the partial or incomplete optic having an active area(or portion(s), e.g., one or more regions or sectors) configured inrelation to the optical element or system such that the partial orincomplete optic controls or changes foci of light incident upon orprovided to the active area, but does not control or change foci oflight bypassing optically relevant portions of the partial or incompleteoptic. In example embodiments and implementations, all portions of apartial or incomplete optic (i.e., the active area and peripheryportion(s), if any, of the lens body) are considered to be “opticallyrelevant” in that such portions affect light incident upon them (thoughin different ways). In embodiments/implementations in which peripheryportion(s) of the lens body have no effect on the foci of light incidentthereupon, or if the partial or incomplete optic does not include anyperiphery portion(s), in such cases, the “active area” would be the only“optically relevant” portion of the partial or incomplete optic.

With respect to optical devices including an opening that does notaffect light passing therethrough (e.g., such as described withreference to FIGS. 10A-14B), such openings (or rather, the openspace/area determined by and in relation to light effecting structure(s)that define the opening) are considered to be an “optically irrelevant”portions/areas of an optical device, or not optically relevant.

In example embodiments and implementations, the partial or incompleteoptic is/includes a partial (optical) disc (e.g., an optic havingsubstantially no more than a half circle body or optical zone).

In example embodiments and implementations, the optical device includesan opening (or an effectively optically irrelevant portion) adjacent toand/or not overlapping (any portion of) the active area. In exampleembodiments and implementations, such an opening encompasses a largerportion (e.g., viewed along optical axis) of the optical device than theactive area—which is beneficial (at least in some implementations) inrespect to halo management.

In example embodiments and implementations, the active area is(generally) fan-shaped (e.g., in a fan shape with a chord no more thantwice the radius of the optical zone size)—also beneficial (at least insome implementations) in respect to halo management.

In example embodiments and implementations, the active area (e.g., afan-shaped sector) is configured (e.g., in relation to the existingoptical element or system) such that a line of sight (LOS) or a visualaxis (VA) of or associated with the optical element or system is at ornear a top portion of the active area (e.g., near top of fan sector).

In example embodiments and implementations, the partial or incompleteoptic is configured (e.g., in relation to the existing optical elementor system) such that the active area controls or changes foci of lightincident upon or provided to the optical element or system at an opticalregion (or area) thereof (of the existing optical element or system). Inexample embodiments and implementations, the partial or incomplete opticis configured and in relation to the optical element or system such thatthe aforementioned optical region (or area) (of the existing opticalelement or system) is (generally) fan-shaped and/or at least partially(e.g., mostly) below (below, in elevational sense) a line of sight(LOS), and/or a visual axis (VA), of or associated with the opticalelement or system—beneficial (at least in some implementations) inrespect to halo management.

As previously discussed, a partial or incomplete optic (e.g., such as orsimilar to that of FIGS. 2A and 2B) can be provided/configuredoperatively as an add-on lens/optic (e.g., in the form of an IOL and/orpartial disc) that magnifies images via creating a near focal point,e.g., by adding a single power or a multifocal (sector) optic to an(existing) optical element or system. In example embodiments andimplementations, a partial or incomplete optic is configured operativelyas an add-on for an existing optical element or system to increase depthof focus. In example embodiments and implementations, a partial orincomplete optic is or includes an ophthalmic lens (e.g., configured toprovide positive or negative optical power). The ophthalmic lens caninclude (or consist of) an optic having substantially one optical power,such as for example a monofocal clear lens. The ophthalmic lens caninclude (or consist of) a multifocal optic, such as for example abifocal lens that controls or changes foci of light to enhance near andintermediate vision. In example embodiments and implementations, such alens configured as an add-on to an (existing) optical element or systemprovides (or effectively provides) a trifocal optical device. In exampleembodiments and implementations, the active area is configured toprovide an area- or sector-specific supplemental lens/optic thatoperates in conjunction with the optical element or system. In exampleembodiments and implementations, the active area includes (or consistsof) one or more refractive optics or optical elements. In exampleembodiments and implementations, the active area includes (or consistsof) one or more diffractive optics or optical elements. In exampleembodiments and implementations, the partial or incomplete optic isprovided in the form of and/or includes at least a portion of anintraocular lens (IOL).

Example embodiments and implementations of the technologies andmethodologies described herein involve a partial or incomplete optichaving an active area that includes or is provided with one or more edgeor side portions configured and/or treated to effect blocking(occlusion) or diffusion of light.

FIGS. 15A and 15B show an example embodiment of a partial or incompleteoptic 1500 (e.g., such as or similar to the partial or incomplete optic200) having a generally fan-shaped active area that includes or isprovided with edge or side portions, e.g., including generally radiallydirected transitions/zones (denoted “SO” at their respective peripheraledge/side surfaces) and additionally, in some implementations, the(inferiorly facing) curved periphery portion (denoted SO′ at itsperipheral edge/surface), configured and/or treated (e.g., with asurface treatment or finish, e.g., a matte finish) to effect blocking(occlusion) or diffusion of light (i.e., stray light, specifically,transient bursts occurring as light sweeps horizontally across theaforementioned edge or side portions of the optical device, thatotherwise could redirect into the fovea contributing to flare/glare). Inexample embodiments and implementations, an active area 250 of thepartial or incomplete optic has a (peripheral) boundary which, at leastin part, includes or is defined by one or more of the edge or sideportions/surfaces SO, SO′.

In example embodiments and implementations, an active area 250′ of thepartial or incomplete optic has a (peripheral) boundary (shown in dashedlines, and denoted “B_(AA)”), which is at a distance from the edge orside surfaces SO, SO′, the aforementioned distance by way of examplebeing in a range of 0-0.5 mm. In other words, in some implementations,the active area peripheral boundary B_(AA) is or includes (or isco-extensive with) the edge or side surfaces SO, SO′, while in otherimplementations, the active area peripheral boundary B_(AA) is adistance from (e.g., not intersecting or directly adjacent to) the edgeor side surfaces SO, SO′. Thus, in example embodiments andimplementations (such as those described herein in which the active areais generally fan-shaped, or a modification of such a shape), the activearea peripheral boundary B_(AA) includes generally radially directedsegments that define (in relation to each other) an angle α which can bereferred to as the angular width of the active area. By way of example,for a (generally) fan-shaped active area, the angular width α can be 45°to 180°. As previously discussed, in some implementations, a pair ofgenerally radially directed (e.g., symmetrical) segments of the activearea peripheral boundary B_(AA) overlay or are substantiallyco-extensive with the edge or side surfaces SO, in which case, thegenerally radially directed peripheral edge/side surfaces SO (at eitherside of the active area) also define or approximately define (inrelation to each other) an angle α which can be referred to as theangular width of the active area.

Thus, in example embodiments and implementations involving a partial orincomplete optic that includes an active area (e.g., such as describedherein), the active area includes or is provided with edge or sideportions (e.g., generally radially directed transitions/zones)configured and/or treated to effect blocking (occlusion) or diffusion oflight (i.e., stray light, specifically, transient bursts occurring aslight sweeps horizontally across the aforementioned edge or sideportions, that otherwise could redirect into the fovea contributing toflare/glare).

In example embodiments and implementations, the edge or side portionsinclude or are provided as a light absorbing surface layer (e.g., thatabsorbs at least a portion of the light wavelength in the visiblespectrum (400 nm-700 nm) at the edge or side portions). In exampleembodiments and implementations, the edge or side portions include orare provided as a surface (roughness/modification) treatment applied orprovided (at the edge or side portions) such that gloss expressed at theedge or side portions is less than a(maximum/predetermined/selected/specified) gloss unit (GU) value (e.g.,<30 GU) or values (or range or gradient of values, or multiple differentvalues, e.g., at different surfaces respectively of the edge or sideportions) specified in respect to (or otherwise associated with) theedge or side portions. In example embodiments and implementations, theedge or side portions include or are provided as a surface finishapplied or provided (at the edge or side portions) such that surfaceroughness at the edge or side portions has (is characterized by)peak-valley height values (within a range) of 7-15 microns.

The edge or side portions that block (occlude) or diffuse light caninclude or be provided in the form of nano-structures, e.g., nano-tips(cones). Nano-structures, for purposes of this application, are or canbe defined as structures having at least one feature dimension (e.g., atip base diameter size) that is in the 0.1 to 1000 nm range. FIG. 20 isan illustration of an edge or side portion (e.g., of an active area of apartial or incomplete optic) including or provided with nano-structures2000 that are cone-shaped or approximately cone-shaped (e.g., nano-tips(cones)), the nano-structures (or nano-tips or cones thereof) being, forexample, 100-300 nm in base diameter (D) and 1,000-16,000 nm (i.e., 1-16microns) in height (H). In example embodiments and implementations, theedge or side portions include or are provided as nano-structures thathave nano-tips or cones. In example embodiments and implementations, theedge or side portions include or are provided as nano-structures thatare cone-shaped or approximately cone-shaped and/or nano-structuresincluding cone-shaped or generally cone-shaped portions. Suchnano-structures can include, for example: nano-tips (e.g.,nano-structures that are cone-shaped or approximately cone-shaped and/ornano-structures including cone-shaped or generally cone-shapedportions), nano-arrays (of cones, for example, or of nano-structureshaving/including other shapes), aperiodic or other arrays ofnano-structures (e.g., nano-tips), antireflection structures (e.g.,antireflection nano-structures that have nano-tips, cone-arrays),biomimetic structures (e.g., biomimetic nano-tips or othernano-structures, biomimetic antireflection structures), or a combinationor combinations thereof. See also Liu F, Dong B and Liu X 2012 Opticaldevices in communication and computation (Bio-inspired photonicstructures: prototypes, fabrications and devices) ed P Xi (Rijeka,Croatia: Intech) pp. 107-126, which is hereby incorporated by reference.

FIG. 16 is a plan view of an example embodiment of a partial orincomplete optic 1600 also having a generally fan-shaped active areathough differing (from the optic shown in FIGS. 15A and 15B) in that theactive area of optic 1600 includes or is provided with an additionaledge portion or surface, namely, a recess denoted “RE” having anddefined at least in part by concave edge portion(s)/surface(s) denoted“S_(RE)”, which provide(s) the partial or incomplete optic 1600 with anopening through which light can pass (e.g., to another optical elementor system) without being effected by the (active area of the) optic1600. The concave edge portion/surface S_(RE) (of the recess RE), shownin profile and defined by radius R_(RE) in the example embodimentdepicted in FIG. 16, has the appearance of a portion of a circle orother curve, or of an inside surface of a partial cylinder, tube, orother curved structure. The concave edge portion/surface S_(RE) can be,but is not necessarily, concentric with respect to the (inferiorlyfacing) periphery edge or side portion/surface SO′.

FIG. 17 is a plan view of an example embodiment of a partial orincomplete optic 1700 also having a generally fan-shaped active areathough differing (from the optic shown in FIGS. 15A and 15B) in that theactive area of optic 1700 includes or is provided with an additionallens portion or sector, namely (in relation to the generally fan-shapedactive area of the optic), a protrusion denoted “PR” having and definedat least in part by a lens surface denoted “S_(PR)”, protrusion outeredge portion(s)/surface(s) denoted “B_(PRo)”, and protrusion inner edgeportion(s)/surface(s) denoted “B_(PRi)” (shown in dashed lines). In theexample embodiment depicted in FIG. 17, the outer and inner edgeportion(s)/surface(s) B_(PRo), B_(PRi), (of the protrusion PR) are shownin profile and defined by radius R_(PR). The additional circular lensportion or sector S_(PR) can be configured for example to provideadded/increased magnification power. The protrusion inner edgeportion(s)/surface(s) B_(PRi) (at which the protrusion PR and thegenerally fan-shaped active area of the optic 1700 interface/transition)can be, but is not necessarily, concentric with respect to the(inferiorly facing) periphery edge or side portion/surface SO′.

The centration or other positioning strategy/approach utilized for anoptical device including a partial or incomplete optic can be selectedor determined depending upon considerations particular to the existingoptical element or system (in/including an eye) and the nature of theoptical device that is to be provided as a supplemental lens/optic. Anoptical device including a partial or incomplete optic can be centeredand/or otherwise positioned/oriented in relation to one or more axes ofor associated with the optical element or system (e.g., an optical axisof an existing optical element with which the partial or incompleteoptic is to be configured operatively as an add-on). In the case of anoptical system that includes an eye, an optical device including apartial or incomplete optic can be centered and/or otherwisepositioned/oriented (e.g., determining optimal (de)centration and tiltfor a partial or incomplete optic in the form of an IOL) in relation to,for example: a line of sight (LOS), a visual axis (VA) or approximationthereof, a pupillary axis, a supranasal axis, another axis of orassociated with the eye (e.g., centered on the achromatic visual axis ofan eye, somewhere between the first Purkinje image and the pupillarycenter), or a combination of these axes. Further, the strategy/approachcan be selected or determined for the clockwise or counterclockwiserotation about the LOS or VA depending upon or in consideration ofpatient preference of halos orientations. For example, some patients mayprefer to see the halos are in the superior instead of inferior visualfield. See also Bonaque-Gonzales et al, 2015, Influence on visualquality of intraoperative operative operation of Asymmetric IntraocularLenses J. Refract Surg. 2015, 31, pp. 651-656, which is herebyincorporated by reference.

Line of sight (LOS), for purposes of this application, is or can be anaxis defined in relation to an aperture (or other component) of anoptical element or system, such as the pupil of an eye. For example, LOScan be an axis defined by the geometric center of a pupil (e.g.,intersecting the geometric center of the undilated pupil). Visual axis(VA), for purposes of this application, is or can be an axis defined inrelation to a fixation point and light sensor(s) of an optical elementor system, such as the fovea of an eye. In the case of an optical systemthat includes an eye, VA can be, for example, a path or line extendingfrom a fixation point (through the nodal points) to the fovea. Cornealvertex can be utilized, in some implementations, as an approximation ofthe visual axis (VA). A pupillary axis is a pathway that extends throughthe center of the entrance pupil and is perpendicular to the cornealpoint that it transects. A supranasal axis is an axis that is(de)centered somewhere between the pupillary axis and the visual axis.See also Roach, L “Centration of IOLs: Challenges, Variables, and Advicefor Optimal Outcomes” EyeNet April 2013 pp. 39-41, which is herebyincorporated by reference.

The previous discussion (with reference to FIGS. 15A and 15B) regardingthe active area peripheral boundary B_(AA) of partial or incompleteoptics is also applicable, in example embodiments/implementations, topartial or incomplete optics including or involving an active areaboundary/edge recess (such as, for example, the partial or incompleteoptic 1600 in FIG. 16) and particularly in respect to the edge or sideportions/surfaces SO (of the generally fan-shaped active area). Opticsincluding or involving an active area boundary/edge recess can beprovided in various designs, for example, as depicted in FIG. 16, inwhich the concave edge portion/surface S_(RE) and the edge or sideportions/surfaces SO differ in their positions and orientations (inrelation to for example LOS and horizontal axis “x”, respectively), andin some instances, the length/radial span of the edge or sideportions/surfaces SO of the optic 1600 differ (e.g., are shorter, orpossibly longer), depending, for example, upon the dimensions of therecess RE and of the optic 1600 overall and particulars of how the opticis to be configured with and in relation to another optical element orsystem.

Further as to examples of how the optic 1600 can be configured with andin relation to another (e.g., existing) optical element or system, seealso the previous discussions (e.g., with reference to FIGS. 4 and 7 andotherwise) regarding the location of a partial or incomplete optic inrelation to a line of sight (LOS), and/or visual axis (VA), associatedwith the optical element or system.

For example, in at least one implementation in relation to FIG. 16,R_(RE) is approximately in the range of 0.5 mm to 1.0 mm, for a partialor incomplete optic located in the eye, at a distance of 1.5 mmanteriorly from the existing lens and positioned at about 0.2 mm nasaland 0.1 mm inferior in relation to a visual axis of the eye.

The previous discussion (with reference to FIGS. 15A and 15B) regardingthe active area peripheral boundary B_(AA) of partial or incompleteoptics is also applicable, in example embodiments/implementations, topartial or incomplete optics including or involving active areaboundary/edge protrusion (such as, for example, the partial orincomplete optic 1700 in FIG. 17) and particularly in respect to theedge or side portions/surfaces SO (of the generally fan-shaped activearea). Optics including or involving active area boundary/edgeprotrusion can be provided in various designs, for example, as depictedin FIG. 17, in which the convex edge portion/surface B_(PRo) and theedge or side portions/surfaces SO differ in their positions andorientations (in relation to, for example, LOS and horizontal axis “x”,respectively), and in some instances, the length/radial span of the edgeor side portions/surfaces SO of the optic 1700 differ (e.g., areshorter, or possibly longer), depending, for example, upon thedimensions of the protrusion PR and of the optic 1700 overall andparticulars of how the optic is to be configured with and in relation toanother optical element or system.

Further as to examples of how the optic 1700 can be configured with andin relation to another (e.g., existing) optical element or system, seealso the previous discussions (e.g., with reference to FIGS. 4 and 7 andotherwise) regarding the location of a partial or incomplete optic inrelation to a line of sight (LOS), and/or visual axis (VA), associatedwith the optical element or system.

For example, in at least one implementation in relation to FIG. 17embodiment, R_(PR) is approximately in the range of 0.5 mm to 1.0 mm,for a partial or incomplete optic located in the eye, at a distance of1.8 mm anteriorly from the existing lens and positioned/centered on avisual axis of the eye.

Referring to FIG. 18, an example method 1800 for enhancing visionincludes, at 1802, providing a partial or incomplete optic as an add-onto an existing optical element or system, the partial or incompleteoptic having an active area (or portion(s), e.g., one or more regions orsectors) configured in relation to the existing optical element orsystem such that the partial or incomplete optic controls or changesfoci of light incident upon or provided to the active area, but does notcontrol or change foci of light bypassing optically relevant portions ofthe partial or incomplete optic.

The step of providing (e.g., implanting) a partial or incomplete opticincludes, for example, positioning the partial or incomplete optic inrelation to the existing optical element or system such that the activearea controls or changes foci of light incident upon or provided to theexisting optical element or system at an optical region (or area)thereof (of the existing optical element or system). In exampleembodiments and implementations, the optical region (or area) (of theexisting optical element or system) is (generally) fan-shaped and/or atleast partially (e.g., mostly) below (below, in elevational sense) aline of sight (LOS) or a visual axis (VA) of or associated with theexisting optical element or system.

In example embodiments and implementations, the existing optical elementor system includes a lens (or other optic) implanted in an eye (e.g., ahuman eye) (or other seeing mechanism or device); and the step ofproviding a partial or incomplete optic is performed subsequent to thelens (or other optic) being implanted.

In example embodiments and implementations, the existing optical elementor system includes a lens (or other optic) implanted in an eye (e.g., ahuman eye); and the step of providing a partial or incomplete opticincludes positioning (e.g., implanting) the partial or incomplete opticin the eye at a location, the location being: in front of an iris/withinan anterior chamber (of the eye), at or near an iris (of the eye),behind an iris/in sulcus (of the eye), or inside a capsular bag (of theeye).

In example embodiments and implementations, the existing optical elementor system includes a lens (or other optic) implanted in an eye (e.g., ahuman eye); and the step of providing a partial or incomplete opticincludes utilizing one or more portions of the eye to secure (e.g.,utilizing one or more clip, claw, anchor, haptic or support structure)the partial or incomplete optic within the eye, the portion(s) of theeye including one or more of: an iris, an anterior chamber, a sulcus(e.g., IOL placement/fixation in the sulcus, ciliary sulcusimplantation), and a capsular bag (e.g., IOL placement in the capsularbag).

In example embodiments and implementations, the method 1800 (andreferring again to FIG. 18) further includes, at 1804, providing theactive area (of the partial or incomplete optic) with (one or more) edgeor side portions that block (occlude) or diffuse light (i.e., straylight, specifically, transient bursts occurring as light sweepshorizontally across the edge or side portions, that otherwise couldredirect into the fovea contributing to flare/glare).

In example embodiments and implementations, the step of providing edgeor side portions that block (occlude) or diffuse light includes applyinga surface treatment or finish (e.g., a matte finish) at the edge or sideportions from outside-in without affecting optical areas. Referring toFIG. 19, the edge or side portions/surfaces SO, SO′ (of the partial orincomplete optic 1500) include/define an apex (denoted “A”) between thetwo portions/surfaces SO, and periphery junctures (denoted “P”) wherethe portions/surfaces SO each adjoin the edge or side portion/surfaceSO′, respectively. The partial or incomplete optic 1500 includes anactive area (denoted “AA”). FIG. 19A is an enlarged partial view of theoptic of FIG. 19, including a pictorial representation of a process ofapplying a light effecting treatment, finish or other modification (fromoutside inward, as represented by the arrow denoted “T₁”) to provide theactive area with edge or side portions that block or diffuse light. FIG.19B is an enlarged partial view of the optic of FIG. 19, including apictorial representation of a process or processes of utilizing multiplelight effecting treatments, finishes and/or other modifications (fromoutside inward, as represented by the arrow, in plural form, denoted “T₁⋅ ⋅ ⋅ T_(N)”) to provide the active area with edge or side portions thatblock or diffuse light. In example embodiments and implementations, suchprocesses are applied from outside inward, but not impinging upon orextending further (in their light occluding or influencing effects) thanthe active area boundary B_(AA). Additionally, in example embodimentsand implementations, the step of providing edge or side portions thatblock (occlude) or diffuse light includes or involves a light effectingtreatment, finish or other modification that is directionally applied(e.g., along, or otherwise in relation to, edge or sideportion(s)/surface(s)). FIG. 19C shows, in a series of illustrations, anedge or side portion (e.g., of an active area of a partial or incompleteoptic, or of a haptic or support structure) to which a light effectingtreatment, finish or other modification is directionally applied alongsurface S thereof, as represented by the arrow (e.g., repositioning fromthe periphery P of the optic inward toward the apex A, or vice versa).

In example embodiments and implementations, the step of providing edgeor side portions that block (occlude) or diffuse light includes applyinga light absorbing surface layer (e.g., that absorbs at least a portionof the light wavelength in the visible spectrum (400 nm-700 nm)) at theedge or side portions. In example embodiments and implementations, thestep of providing edge or side portions that block (occlude) or diffuselight includes applying a surface (roughness/modification) treatment atthe edge or side portions such that gloss expressed at the edge or sideportions is less than a (maximum/predetermined/selected/specified) glossunit (GU) value (e.g., <30 GU) or values (or range or gradient ofvalues, or multiple different values, e.g., at different surfacesrespectively of the edge or side portions) specified in respect to (orotherwise associated with) the edge or side portions. In exampleembodiments and implementations, the step of providing edge or sideportions that block (occlude) or diffuse light includes applying asurface finish at the edge or side portions (e.g., milling the edgeand/or side portions) such that surface roughness at the edge or sideportions has (is characterized by) peak-valley height values (within arange) of 7-15 microns.

In example embodiments and implementations, the step of providing edgeor side portions that block (occlude) or diffuse light includesutilizing one or more of: a lithography technique (e.g., colloidallithography), an etching technique (e.g., a plasma etching techniquesuch as Electron cyclotron resonance (ECR) plasma etching, reaction ionetching (RIE)), or a (self-masked) dry etching technique), and anUV/Ozone surface treatment (See U.S. Pat. No. 8,088,314 B2, which ishereby incorporated by reference), to apply and/or modify one or moresurface structures at the edge or side portions. For example, an etchingtechnique (e.g., a plasma etching technique) can be utilized to provide(e.g., apply and/or modify) one or more surface structures at the edgeor side portions. In example embodiments and implementations, surfacemodifications are applied or made at edge and/or side portions of apartial or incomplete optic made of (or that includes) a hydrophobicacrylic polymer.

In example embodiments and implementations, the step of providing edgeor side portions that block (occlude) or diffuse light includesproviding nano-structures, e.g., nano-tips (cones), at the edge or sideportions. Such nano-structures can include, for example: nano-tips(e.g., nano-structures that are cone-shaped or approximately cone-shapedand/or nano-structures including cone-shaped or generally cone-shapedportions), nano-arrays (of cones, for example, or of nano-structureshaving/including other shapes), aperiodic or other arrays ofnano-structures (e.g., nano-tips), antireflection structures (e.g.,antireflection nano-structures that have nano-tips, cone-arrays),biomimetic structures (e.g., biomimetic nano-tips or othernano-structures, biomimetic antireflection structures), or a combinationor combinations thereof. See also Liu F, Dong B and Liu X 2012 Opticaldevices in communication and computation (Bio-inspired photonicstructures: prototypes, fabrications and devices) ed P Xi (Rijeka,Croatia: Intech) pp. 107-126, which is hereby incorporated by reference.

As previously discussed with reference to FIG. 20, the nano-structurescan be cone-shaped or approximately cone-shaped (e.g., nano-tips(cones)), the nano-structures (or nano-tips or cones thereof) being, forexample, 100-300 nm in base diameter (D) and 1,000-16,000 nm (i.e., 1-16microns) in height (H). In example embodiments and implementations, thestep 1804 (FIG. 18) of providing edge or side portions that block(occlude) or diffuse light includes providing (at the edge or sideportions) nano-structures that are cone-shaped or approximatelycone-shaped (e.g., nano-tips (cones)), the nano-structures being 100-300nm in base diameter and 1,000-16,000 nm (i.e., 1-16 microns) in height(and/or nano-structures including cone-shaped or generally cone-shapedportions).

In example embodiments and implementations, the techniques and processesdiscussed herein can additionally, or alternatively, be utilized toprovide a light effecting treatment, finish or other modification forother portions/surfaces of an optical device. For example, and referringagain to FIGS. 10A-14B, inside portions/surfaces (denoted SH′) of ahaptic or support structure (e.g., above or below the periphery of SOadjacent the haptic, or both) can also receive one or more lighteffecting treatments, finishes and/or other modifications that block ordiffuse light incident thereupon.

The techniques and processes for providing light effecting treatments,finishes and/or other modifications discussed herein can also beutilized (e.g., as applicable depending upon the optically relevant orpotentially relevant portions/surfaces of a partial or incomplete opticand particulars regarding how the optic is to be configured with and inrelation to an optical element or system) for other portions/surfaces oflens/optics designs, for example, in relation to the edge or sideportions/surfaces of the recess RE (FIG. 16) and of the protrusion PR(FIG. 17).

In other example embodiments and implementations, the optical devicefurther includes one or more clip, claw, anchor, haptic or supportstructure, one or more portions of which is/are configured and/ortreated (e.g., with a surface treatment or finish, e.g., a matte finish)to effect blocking (occlusion) or diffusion of light (i.e., stray light,specifically, transient bursts occurring as light sweeps horizontallyacross the aforementioned edge or side portions of the optical device,that otherwise could redirect into the fovea contributing toflare/glare).

By way of example, and referring again to FIGS. 10A-14B, one or moreportions/surfaces of the haptic or support structure(s) in these andother example optical devices can be configured and/or treated (e.g., inaddition to, or as an alternative to, providing the light effectingtreatments, finishes and/or other modifications at the edge or sideportions/surfaces SO and/or at the (inferiorly facing) periphery edge orside portion/surface SO′ of the partial or incomplete optic) to effectblocking (occlusion) or diffusion of light. Such portions/surfaces ofthe haptics are denoted “SH” (for illustrative purposes only at oppositeleft and right periphery portions/surfaces of the haptics as shown inFIGS. 10A-14B) and include, for example, portions/surfaces tending,without light effecting treatment/modification, to contribute to glare.In some implementations, such portions/surfaces of the haptics includevertical portions/surfaces in relation to, and/or peripheralportions/surfaces intersecting (or other portions/surfaces actually orpotentially optically relevant in relation to), a line of sight (LOS)and/or a visual axis (VA) (e.g., of or associated with an existingoptical element or system with which the partial or incomplete optic isconfigured operatively). In this context, the LOS for example can beconsidered as being within a horizontal plane in relation to which theorientation of the aforementioned vertical portions/surfaces isorthogonal (or perpendicular). A horizontal line (such as the axisdenoted “x” in FIG. 5, 16 or 17) perpendicular to and intersecting theLOS can be utilized to (at least conceptually) provide a boundaryseparating upper and lower (or superior and inferior) portions of thepartial or incomplete optic. Such a horizontal line can also be, forexample, in a plane at (i.e., passing through) and representative of theorientation of the partial or incomplete optic. Also within thiscontext, a horizontal reference (such as a line or a plane) can bedefined in relation to an optical element or system with which thepartial or incomplete optic is configured operatively (e.g. as beingfixed in relation to the optical element or system) or in relation tothe partial or incomplete optic (e.g. as being fixed in relation to thepartial or incomplete optic).

In some circumstances, it may be useful to definedirections/orientations in relation to an operating environment of andin respect to imaging elements (image acquisition) functionalities of anoptical element or system and/or the partial or incomplete optic. Forexample, a horizontal reference (such as a line or a plane)alternatively can be defined in relation to an environment containingobjects that can be visually perceived (and in this respect, oncomingheadlights are emblematic) by an optical element or system with whichthe partial or incomplete optic is configured operatively. In such asystem of reference, that which (in direction or orientation) isconsidered “vertical”, for example, changes (in relation toportion(s)/structure(s) of the partial or incomplete optic) as theoptical element or system (with which the partial or incomplete optic isconfigured) reorients (redirecting LOS/VA) in relation to the operatingenvironment.

FIGS. 21A and 21B show an example embodiment of an optical device 2100including a partial or incomplete optic 2120, such as or similar to thepartial or incomplete optic 200 of FIGS. 2A and 2B, and acircumferential ring 2102 and loop haptics 2150, such as or similar tothose of the optical device 1100 of FIGS. 11A and 11B (the opticaldevice 2100 and its partial or incomplete optic 2120, in variousimplementations, being of and embodying a lens/optic design that isconfigurable operatively to serve as or provide an add-on to an existingoptical element or system). The circumferential ring 2102 includes anupper ring portion 2104 and a lower ring (/optic support) portion 2106(e.g., shaped/configured as shown). The loop haptics 2150 include, atopposing exterior portions of the ring 2102, arms 2152 andbase/interconnect elements 2160 (e.g., shaped/configured as shown). Theupper ring portion 2104 includes an inner surface (denoted “SCR_(I)”)and an outer surface (denoted “SCR_(O)”). The partial or incompleteoptic 2120 includes or is provided with edge or side portions, e.g., twosymmetrical surfaces (each denoted “SO”). The inner surface SCR_(I) (ofthe upper ring portion 2104) together with the edge or sideportion(s)/surface(s) SO (of the partial or incomplete optic 2120)define an opening 2130 (or an effectively optically irrelevant portion)of the partial or incomplete optic 2120. The partial or incomplete optic2120 and the circumferential ring 2102 are made of a soft material(e.g., a foldable soft acrylic material such as described in US2010/0145446, which is hereby incorporated by reference) (e.g., a softacrylic material, such as is utilized in AF-1 6.0 mm buttons availablefrom Hoya Surgical Optics), and the two curve-shaped arms 2152 (andtheir respective base/interconnect elements 2160) are made of a materialthat is harder (e.g., polymethylmethacrylate (PMMA)) than the materialof the partial or incomplete optic 2120 and the circumferential ring2102.

FIG. 21B depicts dimensions of the optical device 2100 as shown. By wayof example, dimensions for the optical device 2100 can be as follows:angle α is approximately 160°; M21-1 is for example set at 12.5 mm;M21-2 is for example set at about 6.0 mm; and M21-3 is for example setat about 5.6 mm (the difference between M21-2 and M21-3 indicating theradial distance 0.2 mm between the inner and outer surfaces, SCR_(I) andSCR_(O), of the circumferential ring 2102).

The loop haptics 2150 (of the optical device 2100) include thebase/interconnect elements 2160 shaped/configured and interconnected, asshown, at periphery portions of the upper ring portion 2104 (adjacent tothe opening 2130) and the lower ring portion 2106 (adjacent to thepartial or incomplete optic 2120), respectively.

With reference to FIGS. 21A and 21B, in an example method or process ofinstalling (inserting) an optical device such as or similar to theoptical device 2100 (e.g., into an incision made in a human eye), thelens is folded (or bent) along the x-axis (using tweezers or a lenscase, for example).

FIGS. 22A and 22B show an example embodiment of an optical device 2200including a partial or incomplete optic 2220, such as or similar to thepartial or incomplete optic 200 of FIGS. 2A and 2B, and acircumferential ring 2202 and loop haptics 2250 (the optical device 2200and its partial or incomplete optic 2220, in various implementations,being of and embodying a lens/optic design that is configurableoperatively to serve as or provide an add-on to an existing opticalelement or system). The circumferential ring 2202 includes an upper ringportion 2204 and a lower ring (/optic support) portion 2206 (e.g.,shaped/configured as shown). The loop haptics 2250 include, at opposingexterior portions of the ring 2202, arms 2252, base/interconnectelements 2260 (e.g., shaped/configured as shown) and (optical device)periphery support/interface structures 2270 (e.g., integrally formedwith the base/interconnect elements 2260 as shown). In this exampledesign of an optical device, together, the base/interconnect elements2260 and the periphery support/interface structures 2270 providestructural support at and about the entire periphery of the opticaldevice 2200. The upper ring portion 2204 includes an inner surface(denoted “SCR_(I)”) and an outer surface (denoted “SCR_(O)”). Thepartial or incomplete optic 2220 includes or is provided with edge orside portions, e.g., two symmetrical surfaces (each denoted “SO”). Theinner surface SCR_(I) (of the upper ring portion 2204) together with theedge or side portion(s)/surface(s) SO (of the partial or incompleteoptic 2220) define an opening 2230 (or an effectively opticallyirrelevant portion) of the partial or incomplete optic 2220.

The partial or incomplete optic 2220 and the circumferential ring 2202are made of a soft material (e.g., a foldable soft acrylic material suchas described in US 2010/0145446, which is hereby incorporated byreference) (e.g., a soft acrylic material, such as is utilized in AF-16.0 mm buttons available from Hoya Surgical Optics), and the twocurve-shaped arms 2252 (and their respective base/interconnect elements2260) and the (optical device) periphery support/interface structures2270 are made of a material that is harder (e.g., polymethylmethacrylate(PMMA)) than the material of the partial or incomplete optic 2220 andthe circumferential ring 2202.

FIG. 22B depicts dimensions of the optical device 2200 as shown. By wayof example, dimensions for the optical device 2200 can be as follows:M22-1 is for example set at 13.0 mm; M22-2 is for example set at about6.5 mm; M22-3 is for example set at about 6.2 mm (the difference betweenM22-2 and M22-3 indicating the radial distance between inner and outersurfaces as shown of the (optical device) periphery support/interfacestructures 2270); and M22-4 is for example set at about 5.6 mm (thedifference between M22-3 and M22-4 indicating the radial distancebetween the inner and outer surfaces, SCR_(I) and SCR_(O), of thecircumferential ring 2202).

The loop haptics 2250 (of the optical device 2200) include thebase/interconnect elements 2260 shaped/configured and interconnected, asshown, at periphery portions of the upper ring portion 2104 (adjacent tothe opening 2130) and the lower ring portion 2106 (adjacent to thepartial or incomplete optic 2120), respectively, the base/interconnectelements 2260 and the periphery support/interface structures 2270 beingconfigured (e.g., as shown) to provide structural support at and aboutthe entire periphery of the circumferential ring 2202 (of the opticaldevice 2200).

With reference to FIGS. 22A and 22B, in an example method or process ofinstalling (inserting) an optical device such as or similar to theoptical device 2200 (e.g., into an incision made in a human eye), thetwo curve-shaped arms 2252 are positioned close to the periphery of thelens (e.g., adjacent to the periphery support/interface structures2270), however, the lens is not folded (or bent) requiring a largerincision size (e.g., at least 6.5 mm for installing/inserting theexample optical device of FIGS. 22A and 22B). This could be suitable forcomplicated eye cases such as sulcus fixation or sclera suturing forpatients with AMD (not necessarily cataract-based), or cases where PMMAIOLs are suitable.

Thus, in an example embodiment, an optical device includes a partial orincomplete optic configured operatively as an add-on (e.g., supplementallens/optic) for an (existing) optical element or system, the partial orincomplete optic having an active area (or portion(s), e.g., one or moreregions or sectors) configured in relation to the optical element orsystem such that the partial or incomplete optic controls or changesfoci of light incident upon or provided to the active area, but does notcontrol or change foci of light bypassing optically relevant portions ofthe partial or incomplete optic; wherein the optical device includes anopening adjacent to and/or not overlapping the active area, the partialor incomplete optic includes a circumferential ring that defines aportion of the opening, and the optical device further includes: ahaptic or support secured to and configured to provide structuralsupport at and about an entire periphery of the circumferential ring toprevent bending of the circumferential ring adjacent to the opening(which otherwise/if not so prevented or at least mitigated would resultin the optical device having a greater decentration and a greateroptical tilt) when arms of the haptic or support are compressed. Inexample embodiments and implementations, the partial or incomplete opticand the circumferential ring are made of a first material (e.g., a softacrylic material), and the haptic or support includes one or moreperiphery support/interface structures made of a second material that isharder (e.g., polymethylmethacrylate (PMMA)) than the first material.

FIGS. 23A and 23B show an example embodiment of an optical device 2300including a partial or incomplete optic 2320, such as or similar to thepartial or incomplete optic 200 of FIGS. 2A and 2B, and acircumferential ring 2302 and loop haptics 2350 (the optical device 2300and its partial or incomplete optic 2320, in various implementations,being of and embodying a lens/optic design that is configurableoperatively to serve as or provide an add-on to an existing opticalelement or system). The circumferential ring 2302 includes an upper ringportion 2304 and a lower ring (/optic support) portion 2306 (e.g.,shaped/configured as shown). The loop haptics 2350 include, (peripherysupport/interface structures) at opposing exterior portions of the ring2302, arms 2352, base/interconnect elements 2360 (including curved endportions 2362, e.g., shaped/configured as shown) and (optical device)periphery support/interface structures 2370 (e.g., integrally formedwith the base/interconnect elements 2360 and/or including curved endportions 2372—shaped/configured as shown). In this example design of anoptical device, together, the base/interconnect elements 2360 and theperiphery support/interface structures 2370 provide structural supportat and about the periphery portions of the optical device 2300 (e.g., asshown). The upper ring portion 2304 includes an inner surface (denoted“SCR_(I)”) and an outer surface (denoted “SCR_(O)”). The partial orincomplete optic 2320 includes or is provided with edge or sideportions, e.g., two symmetrical surfaces (each denoted “SO”) and anadjoining curved side portion (denoted “SO′”). In at least one exampleembodiment, an (optical) active area (or an optically relevant portion)of the partial or incomplete optic 2320 has a (peripheral) boundarywhich, at least in part, includes or is defined by one or more edge orside portions/surfaces of the optic 2320 (such as for example thesurfaces/portions SO, SO′). The inner surface SCR_(I) (of the upper ringportion 2304) together with the edge or side portion(s)/surface(s) SO(of the partial or incomplete optic 2320) define an opening 2330 (or aneffectively optically irrelevant portion) of the partial or incompleteoptic 2320.

The partial or incomplete optic 2320 and the circumferential ring 2302are made of a soft material (e.g., a foldable soft acrylic material suchas described in US 2010/0145446, which is hereby incorporated byreference) (e.g., a soft acrylic material, such as is utilized in AF-16.0 mm buttons available from Hoya Surgical Optics), and the twocurve-shaped arms 2352, and their respective base/interconnect elements2360 (and curved end portions 2362 thereof), and the (optical device)periphery support/interface structures 2370 (and curved end portions2372 thereof) are made of a material that is harder (e.g.,polymethylmethacrylate (PMMA)) than the material of the partial orincomplete optic 2320 and the circumferential ring 2302.

FIG. 23B depicts dimensions of the optical device 2300 as shown. By wayof example, dimensions for the optical device 2300 can be as follows:M23-1 is for example set at 13.0 mm; M23-2 is for example set at about6.5 mm; M23-3 is for example set at about 6.2 mm (the difference betweenM23-2 and M23-3 indicating the radial distance between inner and outersurfaces as shown of the (optical device) periphery support/interfacestructures 2370); M23-4 is for example set at about 5.6 mm (thedifference between M23-3 and M23-4 indicating the radial distancebetween the inner (/lens interface) surface of the (optical device)periphery support/interface structure 2370 and the outer periphery ofthe active area of the partial or incomplete optic 2320); M23-5 is forexample set at about 6.1 mm; M23-6 is for example set at about 2.55 mm(M23-6 indicating the distance, orthogonally in relation to the y-axis,between the curved end portions 2362 and 2372 of the respectiveperiphery support/interface structures—FIGS. 23A and 23B, M23-6additionally representing boundaries of other periphery portions of thecircumferential ring (at opposing sides of the circumferential ring andequidistant about the y-axis, in this example) that are not directlyconnected/interfaced to either of the periphery support/interfacestructures, the optical device being foldable at/through the otherperiphery portions (and, in this example, along the y-axis) (e.g.,during a process of installing/inserting the optical device into anincision)); and M23-1 in relation to the curved end portions 2362 and2372 is set for example at about R0.3.

The loop haptics 2350 (of the optical device 2300) include thebase/interconnect elements 2360 and the periphery support/interfacestructures 2370 shaped/configured and interconnected, as shown (e.g.,symmetrically in relation to the opening 2330 and/or one or moreboundaries of the partial or incomplete optic 2320) (e.g., symmetricallyin relation to the y-axis), at periphery portions of the upper ringportion 2304 (adjacent to the opening 2330) and the lower ring portion2306 (adjacent to the partial or incomplete optic 2320), and the opticaldevice 2300 being configured (e.g., as shown) such that, thebase/interconnect elements 2360 and the periphery support/interfacestructures 2370, together (e.g., symmetrically in relation to one ormore boundaries of the partial or incomplete optic 2320), providestructural support at periphery portions of the circumferential ring2302 (of the optical device 2300).

With reference to FIGS. 23A and 23B, in an example method or process ofinstalling (inserting) an optical device such as or similar to theoptical device 2300 (e.g., into an incision made in a human eye), thelens is folded (or bent) along the y-axis (using tweezers or a lenscase, for example). Thus, the example optical device of FIGS. 23A and23B is both foldable and configured to provide structural support atperiphery portions of the circumferential ring to prevent bending of thecircumferential ring (which otherwise/if not so prevented or at leastmitigated would result in the optical device having a greaterdecentration and a greater optical tilt) when arms of the haptic orsupport are compressed. If a 5.5 mm button is utilized (produced),optical devices such or similar to the example optical device 2200(FIGS. 22A and 22B) or such or similar to the example optical device2300 (FIGS. 23A and 23B) can produce 6.0 mm of optical diameter.

Thus, in an example embodiment, an optical device includes a partial orincomplete optic configured operatively as an add-on (e.g., supplementallens/optic) for an (existing) optical element or system, the partial orincomplete optic having an active area (or portion(s), e.g., one or moreregions or sectors) configured in relation to the optical element orsystem such that the partial or incomplete optic controls or changesfoci of light incident upon or provided to the active area, but does notcontrol or change foci of light bypassing optically relevant portions ofthe partial or incomplete optic; wherein the optical device includes anopening adjacent to and/or not overlapping the active area, the partialor incomplete optic includes a circumferential ring that defines aportion of the opening, and the optical device further includes: ahaptic or support secured to and configured to provide structuralsupport at periphery portions of the circumferential ring to preventbending of the circumferential ring (which otherwise/if not so preventedor at least mitigated would result in the optical device having agreater decentration and a greater optical tilt) when arms of the hapticor support are compressed. In example embodiments and implementations,the partial or incomplete optic and the circumferential ring are made ofa first material (e.g., a soft acrylic material), and the haptic orsupport includes (one or more) periphery support/interface structuresmade of a second material that is harder (e.g., polymethylmethacrylate(PMMA)) than the first material. In example embodiments andimplementations, the haptic or support includes peripherysupport/interface structures that are symmetrically (and/ornon-symmetrically) configured in relation to one or more boundaries ofthe partial or incomplete optic. In example embodiments andimplementations, the haptic or support includes peripherysupport/interface structures that are symmetrically configured inrelation to the opening, non-symmetrically configured in relation to theopening, or a combination thereof. In example embodiments andimplementations, the haptic or support includes peripherysupport/interface structures that are not directly connected to otherperiphery portions (e.g., at opposing sides) of the circumferential ringand configured such that the optical device is foldable at (e.g., alongan axis traversing) said other periphery portions (e.g., during aprocess of installing/inserting the optical device into an incision). Inexample embodiments and implementations, the haptic or support includesperiphery support/interface structures that are configured at oppositesides of the optical device (either symmetrically or non-symmetrically)in relation to portions of the optical device at which the opticaldevice is foldable. In example embodiments and implementations, theperiphery portions are at opposing sides of the circumferential ring andapproximately equidistant from an axis (e.g., defined in relation to thepartial or incomplete optic and/or the opening) intersecting portions ofthe optical device at which the optical device is foldable. In exampleembodiments and implementations, the haptic or support includesperiphery support/interface structures with curved end portions, and thecircumferential ring includes exposed periphery portions adjacent to thecurved end portions. In example embodiments and implementations, theperiphery portions of the circumferential ring are smooth/uniform intheir curvature at the exposed periphery portions (and about the entirecircumference of the lens), and the curved end portions 2362 and 2372taper off (semi-gradually) to the exposed lens material (e.g.,curving/transitioning as shown/described herein toward the exposedperiphery portions of the circumferential ring).

Although the present invention(s) has(have) been described in terms ofthe example embodiments above, numerous modifications and/or additionsto the above-described embodiments would be readily apparent to oneskilled in the art. It is intended that the scope of the presentinvention(s) extend to all such modifications and/or additions.

1-30. (canceled)
 31. A method for enhancing vision, the methodcomprising: providing a partial or incomplete optic as an add-on to anexisting optical element or system, the partial or incomplete optichaving an active area configured in relation to the existing opticalelement or system such that the partial or incomplete optic controls orchanges foci of light incident upon or provided to the active area, butdoes not control or change foci of light bypassing optically relevantportions of the partial or incomplete optic.
 32. The method forenhancing vision of claim 31, wherein the step of providing a partial orincomplete optic includes positioning the partial or incomplete optic inrelation to the existing optical element or system such that the activearea controls or changes foci of light incident upon or provided to theexisting optical element or system at an optical region thereof.
 33. Themethod for enhancing vision of claim 32, wherein the optical region isfan-shaped and/or at least partially below a line of sight (LOS) or avisual axis (VA) of or associated with the existing optical element orsystem.
 34. The method for enhancing vision of claim 31, wherein theexisting optical element or system includes a lens implanted in an eye;and the step of providing a partial or incomplete optic is performedsubsequent to the lens being implanted.
 35. The method for enhancingvision of claim 31, wherein the existing optical element or systemincludes a lens implanted in an eye; and the step of providing a partialor incomplete optic includes positioning the partial or incomplete opticin the eye at a location, the location being: in front of an iris/withinan anterior chamber, at or near an iris, behind an iris/in sulcus, orinside a capsular bag.
 36. The method for enhancing vision of claim 31,wherein the existing optical element or system includes a lens implantedin an eye; and the step of providing a partial or incomplete opticincludes utilizing one or more portions of the eye to secure the partialor incomplete optic within the eye, the portion(s) of the eye includingone or more of: an iris, an anterior chamber, a sulcus, and a capsularbag.
 37. The method for enhancing vision of claim 31, furthercomprising: providing the active area with edge or side portions thatblock or diffuse light.
 38. The method for enhancing vision of claim 37,wherein the step of providing edge or side portions that block ordiffuse light includes applying a surface treatment or finish at theedge or side portions from outside-in without affecting optical areas.39. The method for enhancing vision of claim 37, wherein the step ofproviding edge or side portions that block or diffuse light includesapplying a light absorbing surface layer at the edge or side portions.40. The method for enhancing vision of claim 37, wherein the step ofproviding edge or side portions that block or diffuse light includesapplying a surface treatment at the edge or side portions such thatgloss expressed at the edge or side portions is less than a gloss unit(GU) value or values specified in respect to the edge or side portions.41. The method for enhancing vision of claim 37, wherein the step ofproviding edge or side portions that block or diffuse light includesapplying a surface finish at the edge or side portions such that surfaceroughness at the edge or side portions has peak-valley height values of7-15 microns.
 42. The method for enhancing vision of claim 37, whereinthe step of providing edge or side portions that block or diffuse lightincludes utilizing one or more of: a lithography technique, an etchingtechnique, and an UV/Ozone surface technique, to apply and/or modify oneor more surface structures at the edge or side portions.
 43. The methodfor enhancing vision of claim 37, wherein the step of providing edge orside portions that block or diffuse light includes providingnano-structures that have nano-tips or cones.
 44. The method forenhancing vision of claim 37, wherein the step of providing edge or sideportions that block or diffuse light includes providing nano-structuresthat are cone-shaped or approximately cone-shaped, the nano-structuresbeing 100-300 nm in base diameter and 1000-16000 nm in height.
 45. Themethod for enhancing vision of claim 37, wherein the step of providingedge or side portions that block or diffuse light includes providingnano-structures at the edge or side portions, the nano-structuresincluding: nano-tips, nano-arrays, aperiodic or other arrays ofnano-structures, antireflection structures, biomimetic structures, or acombination or combinations thereof.